Component
Erythrocyte superoxide dismutase activity
Erythrocyte superoxide dismutase activity. Species, exposure and limitations are retained in each linked claim.
2 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
After fifteen sessions, erythrocyte superoxide dismutase activity fell significantly compared with the first exposure.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/hbot-research/15003734.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "5e4b6cef5c64b735c97ae362e7a90c76433e3f8fef2978d3b3b2a584016e506f", "start_char": 0, "end_char": 1432, "text_sha256": "5e4b6cef5c64b735c97ae362e7a90c76433e3f8fef2978d3b3b2a584016e506f"}
- experimental_model
- Twelve patients sampled at the first and fifteenth hyperbaric session
- exposure
- Fifteen hyperbaric oxygen treatments without antioxidant supplementation
- limitations
- A small human series without a control group. The fall in enzyme activity may reflect oxidative modification of the enzymes themselves, which the authors state was still under investigation.
- nutrient_topic
- Hyperbaric oxygen research collection; topical membership is not evidence of a direct clinical effect, and a therapeutic exposure is not a dietary intake. · Hyperbaric oxygen therapy
- organism
- Human
- plain_language
- The cell’s own defence enzymes measured lower, not higher, after repeated sessions.
- primary_references
- [hbot-p15003734] Oxidative stress and antioxidant status in patients undergoing prolonged exposure to hyperbaric oxygen. (2004). https://pubmed.ncbi.nlm.nih.gov/15003734/ DOI: 10.1016/j.clinbiochem.2003.12.001
- tissue_or_cell_type
- Plasma and erythrocytes
Hyperbaric oxygen: the exposure, its reactive species, the signals they carry, and the nutrient-dependent enzymes that handle them (2026-09-19) · lines 244–255
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Twelve patients sampled at the first and fifteenth hyperbaric session · source_derived_draft · unverified_draft
### hbot-antioxidant-sod After fifteen sessions, erythrocyte superoxide dismutase activity fell significantly compared with the first exposure. Condition category: normal nutrient_topic: Hyperbaric oxygen research collection; topical membership is not evidence of a direct clinical effect, and a therapeutic exposure is not a dietary intake. plain_language: The cell’s own defence enzymes measured lower, not higher, after repeated sessions. organism: Human tissue_or_cell_type: Plasma and erythrocytes experimental_model: Twelve patients sampled at the first and fifteenth hyperbaric session limitations: A small human series without a control group. The fall in enzyme activity may reflect oxidative modification of the enzymes themselves, which the authors state was still under investigation. exposure: Fifteen hyperbaric oxygen treatments without antioxidant supplementation evidence_span: {"source_cache": "artifacts/hbot-research/15003734.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "5e4b6cef5c64b735c97ae362e7a90c76433e3f8fef2978d3b3b2a584016e506f", "start_char": 0, "end_char": 1432, "text_sha256": "5e4b6cef5c64b735c97ae362e7a90c76433e3f8fef2978d3b3b2a584016e506f"} [hbot-p15003734] Oxidative stress and antioxidant status in patients undergoing prolonged exposure to hyperbaric oxygen. (2004). https://pubmed.ncbi.nlm.nih.gov/15003734/ DOI: 10.1016/j.clinbiochem.2003.12.001
Complete structured claim and evidence
Where it participates (unsigned role)
Baseline reduced glutathione concentration and erythrocyte superoxide dismutase and catalase activities were higher in winter swimmers than in controls, which the authors interpret as an adaptive response to repeated oxidative stress and postulate as a mechanism of increased tolerance to environmental stress.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/cold-research/10396606.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "fdd2deec82fad8f9e148848c443d5b173ec42c0e07d9045c59773f7109883a7b", "start_char": 0, "end_char": 1139, "text_sha256": "fdd2deec82fad8f9e148848c443d5b173ec42c0e07d9045c59773f7109883a7b"}
- experimental_model
- Winter swimmers compared with people who had never taken part, sampled for erythrocyte and plasma antioxidants
- exposure
- Habitual ice bathing
- limitations
- A cross-sectional comparison, so self-selection cannot be excluded. The authors frame it as adaptation to repeated oxidative stress.
- nutrient_topic
- Cold water immersion research collection; topical membership is not evidence of a direct clinical effect, and a therapeutic exposure is not a dietary intake. · Cold water immersion
- organism
- Human
- plain_language
- People who swim in ice water carry more antioxidant defence at rest.
- primary_references
- [cold-p10396606] Improved antioxidative protection in winter swimmers. (1999). https://pubmed.ncbi.nlm.nih.gov/10396606/ DOI: 10.1093/qjmed/92.4.193
- tissue_or_cell_type
- Erythrocytes and plasma
Cold water immersion: cold sensing, heat production, the catecholamine axis and what repeated exposure changes (2026-09-19) · lines 689–700
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Winter swimmers compared with people who had never taken part, sampled for erythrocyte and plasma antioxidants · source_derived_draft · unverified_draft
### cold-winter-swimmer-antioxidants Baseline reduced glutathione concentration and erythrocyte superoxide dismutase and catalase activities were higher in winter swimmers than in controls, which the authors interpret as an adaptive response to repeated oxidative stress and postulate as a mechanism of increased tolerance to environmental stress. Condition category: normal nutrient_topic: Cold water immersion research collection; topical membership is not evidence of a direct clinical effect, and a therapeutic exposure is not a dietary intake. plain_language: People who swim in ice water carry more antioxidant defence at rest. organism: Human tissue_or_cell_type: Erythrocytes and plasma experimental_model: Winter swimmers compared with people who had never taken part, sampled for erythrocyte and plasma antioxidants limitations: A cross-sectional comparison, so self-selection cannot be excluded. The authors frame it as adaptation to repeated oxidative stress. exposure: Habitual ice bathing evidence_span: {"source_cache": "artifacts/cold-research/10396606.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "fdd2deec82fad8f9e148848c443d5b173ec42c0e07d9045c59773f7109883a7b", "start_char": 0, "end_char": 1139, "text_sha256": "fdd2deec82fad8f9e148848c443d5b173ec42c0e07d9045c59773f7109883a7b"} [cold-p10396606] Improved antioxidative protection in winter swimmers. (1999). https://pubmed.ncbi.nlm.nih.gov/10396606/ DOI: 10.1093/qjmed/92.4.193
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.